linux/tools
Sean Tranchetti 5316a7c013 tools: selftests: add test for changing routes with PTMU exceptions
Adds new 2 new tests to the PTMU script: pmtu_ipv4/6_route_change.

These tests explicitly test for a recently discovered problem in the
IPv6 routing framework where PMTU exceptions were not properly released
when replacing a route via "ip route change ...".

After creating PMTU exceptions, the route from the device A to R1 will be
replaced with a new route, then device A will be deleted. If the PMTU
exceptions were properly cleaned up by the kernel, this device deletion
will succeed. Otherwise, the unregistration of the device will stall, and
messages such as the following will be logged in dmesg:

unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 4

Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/1609892546-11389-2-git-send-email-stranche@quicinc.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-07 12:03:36 -08:00
..
accounting
arch tools headers UAPI: Synch KVM's svm.h header with the kernel 2020-12-24 09:24:20 -03:00
bootconfig tools/bootconfig: Store size and checksum in footer as le32 2020-11-30 23:22:11 -05:00
bpf Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-11 22:29:38 -08:00
build Merge remote-tracking branch 'torvalds/master' into perf/core 2020-12-17 14:37:24 -03:00
cgroup
debugging docs: Update documentation to reflect what TAINT_CPU_OUT_OF_SPEC means 2020-12-08 10:53:58 -07:00
edid
firewire
firmware
gpio tools: gpio: add option to report wall-clock time to gpio-event-mon 2020-12-05 23:22:48 +01:00
hv
iio
include tools headers UAPI: Sync kvm.h headers with the kernel sources 2020-12-24 09:24:19 -03:00
io_uring tools/io_uring: fix compile breakage 2020-09-21 07:50:58 -06:00
kvm/kvm_stat tools/kvm_stat: Exempt time-based counters 2020-12-11 19:18:51 -05:00
laptop
leds
lib Merge remote-tracking branch 'torvalds/master' into perf/core 2020-12-17 14:37:24 -03:00
memory-model tools/memory-model: Label MP tests' producers and consumers 2020-11-06 17:25:17 -08:00
objtool Fix a segfault that occurs when built with Clang. 2020-12-27 09:08:23 -08:00
pci
pcmcia
perf perf probe: Fix memory leak when synthesizing SDT probes 2020-12-24 10:52:10 -03:00
power Kbuild updates for v5.11 2020-12-22 14:02:39 -08:00
scripts tools: Factor HOSTCC, HOSTLD, HOSTAR definitions 2020-11-11 12:18:22 -08:00
spi
testing tools: selftests: add test for changing routes with PTMU exceptions 2021-01-07 12:03:36 -08:00
thermal/tmon
time
usb
virtio tools/virtio: add barrier for aarch64 2020-12-18 16:14:30 -05:00
vm
wmi
Makefile